hammermillee



(No Model.) 3 Sheets-Sheet l.

W. HAMMERMILLER.

' FEATHER *GRUSHING MACHINE.

' tented Apr.3, 1883.

(No Model.) 3 Sheets-Sheet2.

W. HAMMERMILLER.

FEATHER GRUSHING' MACHINE.

No.274,936. Patented Apr.3, 1883.

m In

N. PETERS, Fhnm-Lilhographu. Wahi nnnnnn C.

. 3 Sheets-Sheet 3.

w. HAMMERMILLER.

(No Model.)

FEATHER GRUSHING MACHINE.

No. 274,936. Patented Apr.3,1883.

UNITE STATES PATENT OFFICE.

WILLIAM HAMMERMILLER, OF CHICAGO, ILLINOIS, ASSIGNOR TO CHARLESEM'MERIGH & 00., OF SAME PLACE.

FEATHER-CRIJSl-IING MACHINE.

SPECIFICATION forming part of Letters Patent No. 274,936, dated April 3,1888.

Application filed December 6, 1882. (No model.) I

LII

To all whom it may concern Beit known that I, WILLIAM HAMMERMIL- LER, ofGhicago,.in the county of Cook and State of Illinois, have inventedcertain new and useful Improvements iifFeatber-Orushing Ma chines; and Ido hereby declare that the following is a full, clear, and exactdescription thereof, reference being bad to the accorn pan yingdrawings, and to the letters of reference marked thereon, which form apart of this specification.

This invention has for its object to produce a machine that will crushthe quills and shafts of coarse feathers to make them suitable forbedding; and it consists of the novel devices and combinations ofdevices, hereinafter debars a, that are serrated on their projectingedge in a manner that each formsa row of V-shaped teeth. These bars a, Isecure rigidly in their respective grooves by shrinking an iron ring,I), over each end of the cylinder A andbars a. This cylinder A ismounted upon a shaft, B, that turns in solid bearings c, and has apulley, 0, upon its overhanging end.

D is a semi-cylindrical shell, that has flanges d, for bolting ituponfthe wooden frame E.

, Against the ends of this shell D are bolted the flanges f of tworings, F, inside of which the bearings c of shaft B are adjustably heldfrom four opposite sides, each by four set-screws, e. The cylinderA iseccentrically pivoted to the shell D ina manner that the open space be,

tween such shell D and cylinder A is wider on one side than on theother, and that such shell D forms the concave for the cylinder. Aseries of grooves are planed into the shell or concave'l), into whichsteel bars 9 are inserted,

that on their projecting edges are serratedto correspond with theserratures of bars a. The teeth of these bars a and g approach eachother by degrees as the space between the cylinder A and concave Dbecomes less, and the serrated plate h, that is bolted upon the end ofconcave D, leaves but a very narrow clearance between the teeth of suchbar hand of bars a. The barsg are siinilarlysecured in their respectivegrooves of concave I) by bolting an iron strap around each end in suchconcave that will cover the ends of plates g.

G is the feed-table, having side boards, 1'; and H, the cap, that isplaced upon the concave, and provides the feed-openingj, and has thepartition K, that divides the feed-inlet fromthe dischargespace. In oneend of this cap 11 isan oval opening, I, to which the blast-pipe L offan M is connected, while the opposite side of the cap is entirely opento communicate with a room or chamber intowhich the feathers aredischarged by the force of the air-blast after passing through themachine. Both the crushing-cylinder and fan are driven by bolts from ashaft, N, and pulleys O and P. The coarser kind of feathers, that onaccount of their hard and inelastic quills and shafts would Otherwise beuseless for bedding, are placed upon the feedtable G and are pushed intothe openingj, where the roller A, that is driven with great velocity,will carry such feathers into the space between the roller and concave,when the teeth of bars a and g, as they approach each other and theclearingspace becomes less, will crush and break such feathers in amanner that after the feathers have passed the teeth of plate h thequill and shaft of each feather have become soft and pliable, aud yetretain a sufficient elasticity to make them well suitable for bedding.

I do not wish to be restricted to the particu- V-shaped teeth aroundsuch cylinder on spiral lines.

The above machine will not flatten the quill or shaft of the feather,which would be contrary to the desired object, and would make thefeathers unfit for the intended purpose;

but it will simply tear and break them up in a manner to be pliablycurled, and to become soft and elastic and well adapted for pillows.

I am aware that it is not new to construct paper-making and kindredmachines with a cylinder and a concave, each provided with V- shapedteeth. ,I am also aware that a pulpengine has been provided withaserrated bar the equivalent of my bar hand that a woodgrinder has beenconstructed with a cylinder and a concave provided with V-shaped teeth,with the concave eccentrically located relatively to the cylinder, andsuch constructions I do not broadly claim. By constructing the cylinderand concave with grooves and securing therein the serrated bars a g,such bars can readily be removed and either replaced or otherssubstituted in lieu thereof. The location of the concave eccentricall yto the cylinder would not be practical in a feathercrushing machine, asthereby the feathers would be crowded and compressed together by degreesas they approached the exit, and thereby the utility of the machinewould be destroyed, as the teeth could not continuously operate to breakand soften the quills.

What I claim is- 1. The device herein described of crushing feathersbetween a rotating cylinder, A, and

amass a stationary concave, D, both provided with correspondingly-shapedprojecting teeth, and said cylinder being eccentricall y pivoted to theshell or concave D, substantially as and for the purpose set forth.

2. In a feather-crushing machine, the rotating cylinder A, havingcircumferential radial grooves, serrated bars a, forming V-shaped teeth,and the shell or concave D, having grooves and serrated bars 9 and h,and cap H, said cylinder A being eccentrically pivoted to the shell orconcave D, for the purpose described,and the respective bars beingsecured within the grooves, substantially in the manner hereindescribed.

3. In a feather-crushing machine, the rotating cylinder A, provided withprojecting teeth, the stationary concave D, having serrated plates 9 h,the feed-table G, and cap H, with partition K, in combination with thefan M and blast-pipe L, all substantiallyas described and shown, tooperate as specified.

In testimony that I claim the foregoing as my invention I affix mysignature in presence of two witnesses.

WILLIAM HAMMERMILLER.

Witnesses:

LOUIS NOLTING, R. G. SCHMID,

